Tundra
Temperate forest
Grassland
Desert
They have thorns
A combination of the above defenses
Ants protect them
They have toxic chemicals
The savanna gets a fair amount of rain, at least 20 inches a year.
They eat different foods
Their territories don't overlap
They avoid each other as much as possible
They all migrate in different directions
Asia
Antarctica
North America
Australia
Winter and fall
Spring and summer
Winter and summer
Dry and wet
Having deep roots
All of the above
Developing fire-resistant cover
Growing quickly